Machine for operating upon shoes



y 14, 1940- Q c. e. BROSTROM 2.200.381

MACHINE FOR OPERATING UPON SHOES Filed Dec. 8, 1938 3 Sheets-Sheet 2Fig.5.

May 14, 1940. c. e. BROSTROM MACHINE FOR OPERATING UPON SHOES Filed Dec.8, 1958 3 Sheets-Sheet 3 Patented May 14, 1940 T UNITED STATES 12,200,381 I MACHINE FOR OPERATING UPON SHOES Charles G. Brostrom, Salem,Mass, assignor to United Shoe Machinery Corporation, Borough ofFlemington, N. J., a corporation of New Jersey Application December 8,1938, Serial No. 244,631

10 Claims. (01.12-30) This inventionrelates to .machines for operatingupon shoes and is herein illustrated and described as embodied in amachine for opening channels formed upon shoe soles. The usual practicein the opening of channels is to present the shoe by hand to theoperating instrumentalities, beginning at one end of the channel andfeeding the shoe progressively until the entire channel has been opened.The shoe is thus presented, for example, in using the machine disclosedin United States Letters Patent No. 2,- 076,698, granted April 13, 1937upon an application filed in my name, which machine is provided withchannel opening instrumentalities similar to those disclosed herein.

It is an object of the present invention to provide an improved channelopening machine having facilities for assisting the operator inpresenting the shoe to the channel opening instrumentalities. Inaccordance with a feature of the invention the illustrated machine isprovided with means engageable with the shoe upper for feeding the shoerelatively to the operating instrumentalities and with yielding meansfor holding the feeding means. against the shoe upper. The feeding meansherein illustrated consists of a roll which may be of rubber and whichmay be tapered to clear the edge of the sole. This roll is held againstthe shoe upper by a spring,

0 and provision'is made for enabling the roll to yield both upwardly anddownwardly from a desired heightwise position. The illustrated machineis further provided with an abutmentengageable with the toe end of thesole for facilitating the turning. of the sole during operation uponportions of the channel adjacent to the toe end. This abutment in theillustrated machine comprises a post engageable with the edge of thesole and yieldable laterally of the direction in which the sole is fedbut which is held rigidly against movement in the direction of feed toenable the post to. serve as a fulcrum about which the'toe end of theshoe may be turned.

The invention further consists in various features of construction andcombinations and arrangements of parts herein shown and claimed, theadvantages of which will be apparent to those skilled in the art fromthe following description, reference being had to the accompanyingdrawings, in which Fig. 1 is a side elevation of the improved machine;

Fig, 2 is a vertical sectional view taken along the line II-II-of Fig.4;

Fig. 3 is an enlarged View in side elevation of a portion of a machine;

Fig. 4 is a plan view of the machine;

. .Fig 5 is a plan view of the operating instrumentalities; v

Fig. 6 is a plan view illustrating the operation of the machine upona'shoe; and

Fig. 7 is a plan view illustrating the operation with the shoe in a lessadvanced position than shown in Fig. 6.

The operating members of the improved machine comprise a pair of toolsl0 and I2 (Fig. 4) arranged in side-by-side relation to each other.These tools, which are reciprocated alternately, are shown in Figs. 6and 7 as operating upon a shoe S upon the outsole of which is formed achannel lip L. The tool ID has an end portion M (Fig. 1) adapted toraise the lip L, the end portion l4 being concave in a directionheightwise of the sole and convex in a direction lengthwise of the sole.The tool l2 (Fig. 2) has a downwardly extending nose which strikesagainst the shoulder of the turned lip and an upwardly inclined undersurface It. which performs an ironing operation to set the raised andpartially turned lip. The tool [2 has an extension I8 which increasesthe bearing area of the under surface l6. Beneath the tools l0 and I2and bearing against under surfaces formed on said tools is a thinblade-like gage 20 adapted to enter the channel and to engage the rootof the channel lip L, otherwise known as the shoulder of the channel, toposition the shoe in proper. relation to the tools l0 and i2. The gage20 is not stationary but is oscillated lengthwise of the channel tofacilitate feeding of the work. As the tools l0 and I2 are reciprocatedthe tool I!) will first engage the channel lip to raise it to upstandingposition. The tool l2 which is already in engagement with a previouslyturned portion of the lip will then advance into engagement witlrthenewly raised portion of the lip and turn it back to set the lip.

The operating mechanism for the above-mentioned tools is housed inahollow head 22 having a cover plate 2i and supported by a column 23adapted to rest upon the floor. Journaled in the head 22 is a shaft-24(Fig. {1) upon which is secured a pulley 26 adapted to be driven fromany suitable source of power. Secured within the housing 22 are twoupright posts 28 and 30. An arm 32 is fulcrumed at its central portionupon the post 28 and an arm 34 parallel to the arm 32 is fulcrumed atits central portion upon the post 30. A link 36 which is substantiallyparallel to the line joining the centers of the posts 28 and ispivotally secured to the ends the tool l2 while the link 38 similarlyextends out through the opening in the housing and at its outer endcarries an extension 39 upon which is mounted the tool I8. The tools I8and I2 are secured by pivot pins 48 for heightwise swinging movement tothe extensions 39 and 31 of their respective carrier links and arepressed downwardly by leaf springs 42 to stop positions determined bythe engagement of the under surface of each tool with an extendedportion of its carrier. The link 38 has an extension 44 beyond the arm34. Secured upon the shaft' 24 is an eccentric 46 upon which is mountedan eccentric strap 48 which constitutes an end portion of a connectingrod 58, the opposite end of the connecting rod 58 being connected by auniversal coupling to the extension 44. It is evident that theabove-described arrangement will provide for parallel movement of thearms 36 and 38 and hence of the tools I8 and I2 alternately in oppositedirections.

The gage 28 is pivotally mounted upon a bearing pin 52 (Figs. 2 and 5)secured in a sliding block 54 which is mounted in a block 56 withprovision for adjustment of the gage 28 in the direction of movement ofthe tools I8 and I2. The block 56 in turn is secured upon a block 58with provision for heightwise adjustment and the block 58 is securedupon the head 22 with provision for horizontal adjustment of the gage 28in a direction normal to the direction of the movement of the tools I8and I2. The gage 28 has a tail portion 68 extending beyond the pin 52upon the end portion of which is pivotally mounted a block 62 which isembraced by a fork 64 extending from the arm 82. A bolt 6| adjustablythreaded in a bracket 63 secured to the housing 22 has a head having asmooth surface which bears against the upper surface of the tail 68 tosupport the gage 28 against any tendency to tilt vertically. It isevident that the rocking of the arm 32 about the post 28 as the tools I8and I2 reciprocate will serve also to rock the gage 28 about the pin 52.

The operating mechanism as so far described is identical with thatdisclosed in the above-mentioned Letters Patent No. 2,076,698. The toolsI8 and I2 and the gage 28 disclosed herein are similar to thecorresponding members shown in said Letters Patent, being designed,however, for operation upon channels of the English type.

For feeding the shoe S past the operating tools there is provided afrusto-conical rubber roll 66 having a rounded periphery engageable withthe shoe upper. The roll 66 (Fig. 2) has a metal hub 68 which isjournaled upon an upstanding pin I8 secured in a block I2 which, inturn, is secured to a block 74. Extending horizontally through the upperportion of a housing member I3 secured by screws 15 to the cover plate2I is a pin I6 from the outer end portions of which depend a pair ofswinging arms 18 (Figs. 1, 2, 4 and 7) upon opposite sides of the memberI3. As shown in Fig. 4, slots for the screws "I5 are provided in thecover 2I to enable the member I3 to be adjusted to the right or left.Pivotally mounted upon the lower ends of the arms I8 is a bracket 88upon which is adjustably secured by screws 82 the block I4. Formed uponthe hub 68 is a bevel gear 83 which is driven by a bevel gear 84 securedupon a shaft 86 journaled in the block I4. The shaft 86 is driven in thedirection indicated. by the arrow in Fig. 6 through an intermediateshaft 88 by a shaft 98 which is journaled for longitudinal slidingmovement in the head 22, the shaft 88 being connected for universalmovement to the shafts 86 and 98. A pinion 92 (Figs. 1 and 4) secured onthe shaft 98 is driven through a pair of intermeshing gears 94 and 96 bya shaft 98 upon which is secured a worm wheel I88. A worm I82 securedupon the shaft 24 drives the worm I88. This arrangement provides fordriving the feed roll 66 at a speed very much less than that of theshaft 24.

The roll 66, as above described, is free to rise and fall about thepivotal connection of the bracket 88 to the arms 18 and is free to movein the direction of movement of the tools I8 and I2 by reason of thepivotal connection of the arms I8 to the head 22. To control theposition assumed by the roll 66 the arms I8 are urged toward the left,as viewed in Fig. 1, by a pair of springs I84 (Figs. 1 and 4) operatingagainst the respective arms. Welded upon each side of the housing memberI3 is a bracket I86 (Figs. 1 and 4) having a lug I88 which constitutesan abutment for the respective springs I84. Each of the brackets I86 hasa lug II8 through which is threaded a stop screw II2 for adjustablylimiting the forward swing of the respective arms I8 and thus limitingthe movement of the roll 66 toward the left, as viewed in Fig. l.

The heightwise position of the roll 66 is controlled by a pin II4 (Figs.2, 3 and 7) secured in the bracket 88 and slidably engaging a.horizontal groove II6 formed in a block II 8. A pair of rods I20 securedat their upper ends to an extension I22 of one of the brackets I86 andconnected at their lower ends by a block I24 constitute a support uponwhich the block H8 is freely slidable up and down. Interposed betweenthe extension I22 and the block H8 is a spring I26, while interposedbetween the block I24 and the block H8 is a spring I28. The springs I26and I28 are centered and supported by a rod I38 secured in the extensionI22 and block I24 and passing freely through the block I I8. The blockII8 will tend to maintain a neutral position under the influence of thesprings I26 and I28, from which position, however, it may yield eitheruppardly or downwardly.

Secured upon the brackets I86 is a platform I3I (Figs. 1, 2 and 4) uponwhich is secured a block I32. Fulcrumed upon a pin I34 mounted in theblock I32 is a block I36 in which is rigidly secured a downwardlyextending post I38. A tension spring I48 interposed between the blockI36 and a support I42 on the platform I3I tends to swing the post I38toward the left, as viewed in Fig. 1, to a stop position adjustablydetermined by a screw I44 threaded through a lug in the block I36 andengageable with the upper surface of the block I32. The post I38 isvertical or substantially so, as may be desired and may yield toward theright, as viewed in Fig. 1.

In the operation of the machine the shoe S having a channeled sole ispresented by hand to the operating tools. The lip L is turned over byhand at a locality adjacent to one end of the channel and the shoe ispresented with the tool I2 extending over the turned-over portion of thelip and with the gage 28 extending into the channel. The operatorpresses the shoe upwardly and toward the right, as viewed in Fig. 2,against the gage 28 with the root of the lip L in contact with the endof the gage. When the shoe is in this position the feed roll 66 will beheld in engagement with the upper of the shoe by the springs I84, theroll 66 having yielded to the right from its normal stop position. Thefeed roll not only is yieldingly held against the upper by the springsI84, but is enabled also by the springs I26 and I28 to yield up or down.Such provision for all ' tion between said carrier and said slide forconheightwise yielding is important because of the fact that ordinarysoles are not plane and have to be tilted up or down as the junction ofthe shank with the forepart passes the operating tools. The post I38will press idly against the edge of the sole, having likewise yielded tothe right from its normal stop position. As the tools- H3 and I2reciprocate alternately the tool ID will raise the lip L and the tool I2will set the lip. As the operation progresses toward the toe end of theshoe the post I38 under the influence of the spring ME will follow thecurvature of the edge of the sole at the toe end, swinging gradually tothe left until it occupies its normal stop position shown in Fig. 7. Asthe operator turns the shoe at its toe end the post I38 servesconveniently as a fulcrum to facilitate the swinging of the shoe. As theoperation passes the portion of greatest curvature and the shoe is againpresented laterally to the operating tools the post I38 will yieldto theright as shown in Fig. 6 and thus will not in any way interfere with thefeeding of the shoe.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A machine for operating upon shoes comprising means for operatingupon a channel formed on the sole of a shoe, a roll engageable with theshoe upper, means for holding said roll in a desired heightwise positionfrom which said roll may yield both upwardly and downwardly, and meansfor driving said roll to feed the shoe relatively to said operatingmeans.

2. A machine for operating upon shoes comprising means for operatingupon a channel formed on the sole .of a shoe, 2. roll engageable withthe shoe upper, a pair of opposed springs acting upon said roll forholding said roll in a desired heightwise position from which said rollmay yield bothl upwardly and downwardly, a spring urging said rollagainst the shoe upper, and means for driving said roll to feed the shoerelatively to said operating means.

3. A channel opening machine comprising means for opening a channelformed on the sole of a shoe, a roll engageable with the shoe upper, acarrier in which said roll is rotatably mounted, an arm upon which saidcarrier is pivotally mounted for substantially heightwise swingingmovement of said roll, a support upon which said arm is pivotallymounted for substantially horizontal swinging movement of said carrier,yieldable means for maintaining said carrier in a desired position bothheightwise and horizontally with respect to said channel opening means,and means for driving said roll to feed the shoe relatively to saidchannel opening means.

4. A channel opening machine comprising means for opening a channelformed on the sole of a shoe, a roll engageable with the shoe upper, acarrier in which said roll is rotatably mounted, a support for saidcarrier constructed and arranged to enable said roll to move bothvertically and horizontally, a vertical guide, a slide on said guide, apair of opposed springs acting upon said slide for maintaining saidslide in a desired heightwise position from. which the slide may yieldboth upwardly and downwardly, a connectrolling the heightwise positionof said carrier in accordance withthe heightwise position of the slide,said connection being constructed and arranged for horizontal movementof said carrier relatively to said slide, a spring for urging the rollhorizontally against the shoe upper, and

means for driving said roll to feed the shoe relatively to said channelopening means.

5. A channel opening machine comprising means for opening a channelformed on the sole of a shoe, a roll engagcahle with the shoe upper,means for driving said roll to feed the shoe relatively to said channelopening means, a gage for gaging the shoe in relation to said channelopening means, a support for said feed roll, and a spring acting uponsaid support to urge said roll against the shoe while enabling the rollto yield under pressure of the shoe as the shoe is held against saidgage.

6. A channel opening machine comprising means for opening a channelformed on. the sole of a shoe, a roll engageable with the shoeupper,means for driving said roll to feed the shoe relatively to said channelopening means, a gage for gaging the shoe in a direction transverse tothe direction in which the shoe is fed by said feed roll, a supportconstructed and arranged to enable said roll to yield under pressure ofthe shoe both heightwise and transversely of the direction in which theshoe is being fed, and resilient means for holding said roll againsttheshoe.

'7. A channel opening machine comprising a pairof reciprocatory toolsconstructed and'arranged to raise a channel lip on the sole of a shoeand to turn back the lip respectively, means for reciprocating saidtools, a driven feed roll engageable with the shoe upper, and a. springforholding said roll against the shoe as the shoe is presented by handto said lip-raising tools.

8. 'A channel opening machine comprising a pair of reciprocating membersin side-by-side relation constructed and arranged to raise a channel lipon the sole of a shoe and to turn back the der of the lip may be held, adriven feed roll engageable with the upper of the shoe, and yieldablemeans for holding said roll against the shoe, said holding means beingalso constructed and arranged to yield'heightwise of the shoe.

9. In a machine for operating upon the soles of shoes, means foroperating progressively upon the marginal portion of a sole when theshoe is presented by hand, a post engageable with the edge of the soleas the shoe is being fed, and a support for said post constructed andarranged for yielding movement of the post laterally of the direction offeed while holding said post rigidly against movement in the directionof feed to enable the post to facilitate turning of the shoe duringoperation in the vicinity of the toe end of the sole.

10. In a machine for operating upon channels formed upon the soles ofshoes, means for operating progressively upon the channel of a sole whenthe shoe is presented by hand, means for feeding the shoe relatively tosaid operating means, a post engageable with the edge of the sole as theshoe is being fed, a pivotal support constructed and arranged forswinging movement of said post laterally of the direction of feed whileholding said post rigidly against movement in the direction of feed, aspring for

